29688401 has 4 divisors (see below), whose sum is σ = 29699904. Its totient is φ = 29676900.

The previous prime is 29688391. The next prime is 29688419. The reversal of 29688401 is 10488692.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29688401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29688301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116 + ... + 7706.

It is an arithmetic number, because the mean of its divisors is an integer number (7424976).

Almost surely, 2^29688401 is an apocalyptic number.

It is an amenable number.

29688401 is a deficient number, since it is larger than the sum of its proper divisors (11503).

29688401 is an equidigital number, since it uses as much as digits as its factorization.

29688401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 29688401 is about 5448.7063602290. The cubic root of 29688401 is about 309.6437148521.

The spelling of 29688401 in words is "twenty-nine million, six hundred eighty-eight thousand, four hundred one".